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, <br /> � silt or clay, or both in the upper part of the solum. Martinsville soils have redder hue in the B <br /> horizon and formed in stratified outwash or lacustrine sediments. Nodine soils have thicker sola <br /> � which is mare stratified and leached of free carbonates to greater depths. Owosso soils have more <br /> sand and less silt or clay in the upper part of their sola. Princeton soils formed in aeolian <br /> � sediments and have stratified C horizons. Relay soils have hue of 2.SY or SY in all parts of the B <br /> horizon. Teanaway soils have firm sandy clay loam C horizons with redder hue. Theresa soils <br /> formed partly in loess and have 2C honzons with 40 to 60 percent calcium carbonate. <br /> � GEOGRAPHIC SETTING: Hayden soils have plane or convex slopes on gently undulating <br /> through steep glacial moraines of the Des Moines and Grantsburg sublobe of the Late <br /> Wisconsinan glaciation. Their slopes range from 2 to 40 percent and mostly are 80 to 300 feet in <br /> � length. These soils formed in calcareous loamy glacial till. Montmorillonite is the dominant clay <br /> mineral in the glacial till. Mean annual temperature is 45 to 50 degrees, and mean annual <br /> precipitation is 27 to 33 inches. <br /> � GEOGRAPHICALLY ASSOCIATED SOILS: These are the Amcs, I)undas, Hai��el, I.uthcr, <br /> and Ncssel soils which are members of a toposequence with the Hayden soils. Moderately well <br /> drained Nessel soils have plane or slightly convex slopes. Poorly drained Ames and Dundas soils <br /> � have slightly concave to slightly convex slopes with gradient of less than 2 percent. Poorly <br /> drained Hamel soils are on toe slopes. Organic soils are common associates in some places. <br /> DRAINAGE AND PERMEABILITY: Well drained. Runoff is medium and rapid. <br /> � Permeabiliry is moderate. <br /> USE AND VEGETATION: Mostly cleared and cultivated to corn, soybeans, small grain, and <br /> hay. Native vegetation was deciduous forest of maple, basswood, oak, and elm. <br /> ' DISTRIBUTION AND EXTENT: Southeastern Minnesota and in central Iowa. Extensive. <br /> MLRA OFFICE RESPONSIBLE: St. Paul, Minnesota <br /> ' SERIES ESTABLISHED: Hennepin County, Minnesota, 1929. <br /> ADDITIONAL DATA: Refer to Minnesota Agricultural Experiment Station Central File Code <br /> No. 967 for results of some laboratory analysis of the typical pedon. <br /> � National Cooperative Soil Survey <br /> U.S.A. <br /> ' <br /> � <br /> � <br /> � <br /> ' <br /> � Svoboda Ecological Resources 744 Brown Road North <br /> Project No.: 2007-081-03 25 Ted Schultze <br /> � <br />